Objects

Object Properties and Methods

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object

obj.propName
obj['propName']

 

Passing Objects to Functions

Functions can change an object's properties and methods

 

Standard Built-in Objects

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects

date, math, string, number

 

The Document Object Model (DOM)

https://developer.mozilla.org/en-US/docs/Web/API/Element

the document object

 

Styling DOM Elements

element.style.cssProp = 'value'

https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement

 

 

Detect Button Clicks

element.addEventListener(event, function())

showing "click" in console display

 

Showing and Hiding DOM element

element.classList.add(className)
element.classList.remove(className)
element.classList.contains(className)

remove class, d-none and showing the contents with id, review